GPIO Interface

The Trainer provides an interface to 8 of the MinnowBoard's GPIO signals. The GPIO signals are at +3.3V levels and are located next to the prototyping area.

Serial EEPROM

The Trainer board provides an AT24C01 serial EEPROM that contains a Vendor ID and a Device ID that the MinnowBoard uses to identify the type of board connected to the expansion header. This information enables the MinnowBoard to auto-configure the signals needed by the Trainer.

ATmega328 (Arduino Hardware Compatible)

An ATmega328 embedded processor is located on the Trainer board that is user programmable. The ATmega328 is hardware compatible with the Arduino and it's I/O signals are available next to the prototyping area. The ATmega328 can be user jumpered to run at either +3.3V or +5V. One of the MinnowBoard's GPIO signals (GPIO_SUS1) controls the ATmega328's power supply and can turn on or off the power to the ATmega328. The ATmega328 can run off it's internal RC oscillator or it also has an external crystal(footprint provided but not populated).

Prototyping / Breakout Area

Attaching to the MinnowBoard

Attach the four board spacers with the screws provided.

Connect the expansion board onto the TOP SIDE of the MinnowBoard by mating
with the 100-pin header. Make sure all of the pins align correctly.
Continue pushing the two boards together until the connectors mate together.